Electric fitting for circuit-wiring.



M. F. FINKBLSTBIN.

ELECTRIC FITTING FOR CIRCUIT WIRING.

A PIL IOATION FILED NOV. 17, 1911.

Patented July 14, 1914.

Y KMMM Z ATTORNEYS UNITED STATES PATENT OFFICE.

MORRIS F. FINKEELSTEIN, on NEW YORK, 1\T.-Y.'

ELECTRIC FITTING FOR CIRCUIT-WIRING.

Specification of Letters Patent.

Patented July 14, 1914.

Application filed November 17, 1911. Serial No, 660,868.

To all whom it may concern:

Be it known that I, MoRnIs F. FINKEL- STEIN, a citizen of the United States, and a resident of the city of New York, (borough.

of the Bronx,) in the county and State of New-York, have invented a new and Improved Electric Fitting for Circuit-Wiring, of which the following is a full, clear,.. and exact description.

This invention relates to electric fittings and has reference more particularly to a fitting including or constituting a connection for electric conductors, comprising an insulating casing, clamping plates within said casing and spaced apart to receive the end of a wire therebetween, and means for moving one of the plates towardthe other to engage and clamp the wire.

An object of the invention is to provide a simple, strong and durableelectric fitting which can be fashioned from different materials adapted for the purpose, which is mental form to correspond with'the sur rounding ornamentatlon, by means of which susceptible of a variety of uses, by means of which electric conductors can be readily and securely connected, by means of which the electrical connection effected is an excellent one, and which can be easily manipulated.

A further object of the invention is to provide an electrical connection which can be used for various purposes in electric light, signal and other installation, in which the insulating casing comprises a single piece, in which the conductors are securely held against accidental displacement notwith standing that they can be readily attached and released, which requires but a single screw or other like member to hold it in position, which may have any suitable ornasoldered splices can be eliminated, and whereby the necessity of using a gasolene torch or like device is obviated when con necting wires.

A still further object of the invention is to provide a conductor connection which is so strongly constructed that the insulating and concealed parts cannot be readily in ured, b means of which short circuits, can be obviated, as wellas the possibility of contact with current-carrying parts, in which the contacting parts are thoroughly embedded in insulatingmaterial and are thus not liable to come in-contact with adjacent objects, and in which the conductors are securely gripped between contacting surfaces of material dimensions, whereby a thorough securing of the conductor and an excellent electric contact are assured.

The invention consists in the construction and combination of parts to be more ,clearly understood that the'insulating cas- .ing of each instrument may be fashioned from porcelain, composition, or any other suitable material adapted for the purpose. Forthe contact-making parts I prefer to employ brass or similar metal possessing a high degree of conductivity.

Referring to the drawing, the figures illustrate a wire connector by means of which two or more wires can be gripped and joined; The connector comprises two preferably cylindrical members 110 having therein longitudinal bores 111 each provided with a reduced part 112 terminating'at an enlarged end opening 113. Within the reduced bores 111 is a metallic sleeve 11% in which are received til-shaped clamping members 115, the-inner adjacent faces of which are preferably roughened. These clamping members receive the bared ends of the conductors 116 which are introduced through the openings 112 and 113. The sleeve 114 has threaded openings 117 in which are received the clamping screws 118 located in openings 119 of the'members 110. A guard is rotatably mounted upon the connector by means of a split spring ring 120. It has a longitudinally extended, rounded cap or cover 121 which normally serves to cover up the openings 119. At the ends, the spring ring has inwardly disposed parts 122 forming projections adapted to engage in recesses 123 of the connector members. In this way the ring serves to look the guard in an operative and an inoperative position and prevents its accidental displacement. In Fig. '1 is shown a single conductor introduced into the connector at one end, while in Fig. 3 1 have illustrated a plurality of conductors joined with a single connector. While the drawing illustrates pair of U-shaped clamping members 115, disposed with the clamping ends toward the end of the tubular member 114, a single member provided with clamping ends can be substituted for the two shown in the drawing and it will answer the same purpose.

- It will he noted that the openings 119 are so. proportioned that they receive loosely the clamping screws 118. Consequently, when the device is first assembled these screws can be readily inserted in the openings and will then. be held in place against accidental re moval by the cover 121. This obviates the necessity for screwing; the screws partly into the threaded openings 117, and thereby til is, labor and expense are saved When the device is to be used, and after the ends of the wires have been inserted in the U shaped clamping members, the elements 118 can then be screwed into'the openings 11? to tighten the clamps. The'clamps, it will he noted, in eiie-ct constitute oppositely dis posed spring-controlled jaws within which the ends of the wires are received Having thus described my invention, I claim as new and desire to secure by Let tors Patent:

connector for electric conductors, an insul -ting casing, a clamp i7 casing adapted to e. gage and I. ire, a clamp-operating member, said A 1 g an opening adapted to receive 'ing member loosely, and means 1g the operating member loosely in the ope in z 2. connector for electric conductors, comprising an insulating casing, a clamp within said casing adapted to engage and grip awire, a-clanip operating member, said casing havin an opening adapted to receive -and hold sai member looselywhen the said member inoperative with respect to said clams a movable cover ada ted to close said opening.

3. A connector for electric COIldllCtOP-Sy comprising an insulating casing, a pair of oppositely disposed. clamps Within. said casing, said casing having openmgs for permit 'ing having registering openings ting the introduction of the ends of conductors into said clamps, clamp-operating members, saidcasin having further openings adapted to receive and hold said men1- hers loosely when the same are inoperative with respect to said clamps, and a cover for said last-mentioned openings, said cover tering with. said threaded opening and'of greater dimension than the same, a clamping screw-adapted to be received in said threaded opening and to be received loosely in said other opening, a clamping member in said sleeve adapted to be controlled by said screw and means on said casing for retaining said screw in the opening 01 the casing 5. A. connector for electric conductors, comprising ail-insulating casing, a conducting sleeve therein having-a threaded opening, said casing havin an opening regis tering with said threaded opening and of greater dim nsion than the same, a clamping screw ads ited to be received. in saf thread-- ed opening; and to be received loosely in said other opening, a clamping member in said sleeve adapted to be cot itrolled hys l screw, and a cover upon said. casing at vablc relative t ereto and adapted to said opening of said. casing.

6. A connector for electric comprisir an insulati therein ha "1g jaws i open, said casing having means \v clamp is l against bodily inc member or o in said ea n" clamp to of I said last-m; cessihle.

7. A coriectcr coinprisin ing sleeve comprisin i means for holding sai clai :rgainst bodily moi ent, said sleeve ans said casited to receive cla. .ng screws, clamping sci ews located in saic openings and each controlling one of said clamps and a cover for said openings of th casing, rendering normally said crews inaccessible.

8. A connector for electric conductors, comprising an insulating casing, a conducting sleeve therein, a pair of oppositely disposed clamps located. 111 said sleeve and each comprising jaws tending normally to open, means for holding said clamps against bodily movement, said sleeve and said. casing 7 having registering openings adapted to resaid casing adapted to extend over said openings.

In testimony whereof I have signed my Y name to this specification in the presence of two subscriblng witnesses;

MORRIS F. FINKELSTEIN.

Witnesses:

JOHN P. DAVIS, JOHN K. Bnoonvoenn 

